439849 has 2 divisors, whose sum is σ = 439850. Its totient is φ = 439848.

The previous prime is 439823. The next prime is 439853. The reversal of 439849 is 948934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310249 + 129600 = 557^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 439849 - 2¹³ = 431657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (439349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219924 + 219925.

It is an arithmetic number, because the mean of its divisors is an integer number (219925).

2⁴³⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

439849 is a deficient number, since it is larger than the sum of its proper divisors (1).

439849 is an equidigital number, since it uses as much as digits as its factorization.

439849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 439849 is about 663.2111277715. The cubic root of 439849 is about 76.0503475255.

The spelling of 439849 in words is "four hundred thirty-nine thousand, eight hundred forty-nine".